Chloroquine is now uncommonly used in favor of its derivative hydroxychloroquine. In the United States, hydroxychloroquine is most often used for its anti-inflammatory effects in rheumatology and dermatology. Drug warnings for plaquenil Inappropriate malaria prophylaxis chloroquine resistant Chloroquine vs doxycycline Chloroquine phosphate tablets should not be used in these conditions unless the benefit to the patient outweighs the potential risks. Usage in Pregnancy Usage of Chloroquine during pregnancy should be avoided except in the prophylaxis or treatment of malaria when the benefit outweighs the potential risk to the fetus. Hydroxychloroquine Plaquenil and chloroquine cause ocular toxicity to various parts of the eye such as the cornea, ciliary body, and retina. Chloroquine can also induce cataract formation; however, no reports of hydroxychloroquine and cataract have been reported. This article focuses upon hydroxychloroquine retinopathy. Disease Hydroxychloroquine HCQ retinopathy can result in permanent vision loss. In early stages of HCQ retinopathy, patients are usually asymptomatic with preservation of visual acuity. We aspire that our review, in conjunction with the American Academy of. While early toxicity may be asymtomatic, patients with more advanced stage of toxicity may complain of color vision changes or paracentral scotomas. Its toxic effects on the retina are seen in the macula. Chloroquine retinopathy screening How to Succeed in Plaquenil Screenings, Hydroxychloroquine toxicity - EyeWiki Plaquenil per alopeciaIs hydroxychloroquine sulfateHydroxychloroquine 200 mg t Guidelines on screening for retinopathy associated with hydroxychloroquine toxicity were initially published by the Academy in 2002. These guidelines were updated in February of this year, given the emergence of more sensitive diagnostic techniques and the recognition that risk of toxicity from years of hydroxychloroquine use is greater than. Hydroxychloroquine-Induced Retinal Toxicity - American.. Hydroxychloroquine retinopathy A review of imaging. Multimodal Imaging in Plaquenil Toxicity. Diagnosis Hydroxychloroquine-induced retinal toxicity Discussion. Chloroquine CQ and hydroxychloroquine Plaquenil HCQ have been used for many years, initially for the treatment of malaria but now more commonly for the treatment of inflammatory diseases such as rheumatoid arthritis and lupus 1. She suffered from Sjogren syndrome and inflammatory arthritis and was currently treated with prednisone and methotrexate. She was previously treated with hydroxychloroquine Plaquenil 200mg bid 6.5mg/kg for 10 years, which was stopped one year prior to presentation. The Royal College of Ophthalmologists RCOpth published guidance on hydroxychloroquine and chloroquine retinopathy screening in 2018. The guidance recommends that all patients planning to take hydroxychloroquine long term i.e. more than five years should have an OCT scan within 12 months preferably within six months of starting therapy and annual screening following five years of treatment.